Dynamic Vapor Sorption

Dynamic Vapor Sorption
Dynamic vapor sorption (DVS) is based on the gravimetric determination of vapor adsorption isotherms. By varying the vapor concentration surrounding a sample and measuring the change in mass it produces, rate and quantity of a solvent adsorbed by a sample can be measured. Vapor concentration is achieved by mixing saturated and dry gas streams. A microbalance measures changes in weight as sample sorbs or desorbs vapor. The DVS systems are excellent tools for examining the effects of relative humidity on a variety of products.

DVS Advantage
The DVS Advantage uses dry air or dry nitrogen as carrier gas. The user can select one of any two vapor sources, originating from liquid organic solvents or water held at the same temperature as the DVS. When the dry carrier gas passes through a solvent, it becomes saturated with the vapours of that solvent. Precise control of the ratio of saturated and dry gas flow is enabled with mass flow control combined with the use of unique real time vapour concentration monitoring. A known concentration of the selected vapour then flows over a sample suspended from a recording ultra-microbalance, which measures the change in weight caused by sorption or desorption of the vapour molecules. These dynamic flow conditions enable the adsorption/desorption processes to be so rapidly studied.

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News Letter

Events

P-MEC India 2018
» Visit Labindia Instruments Pvt. Ltd.at Booth No.15. D4 3 in Hall-15.
» Labindia Instruments Pvt. Ltd.is participating at P-MEC India 2018 being held at India Expo Centre (IEML), Greater Noida, Delhi NCR, India
from 12–14 December, 2018 and have been allotted Booth No.15.D43 in Hall15.
Stop by our booth to chat with some of our Sales and Marketing Representatives, pick up a catalog, and see some of our equipment on display.If you would like to set up a meeting with us prior to P-MEC just give us a call at 022-25986038 / 25986358 or reply to this e-mail!We look forward to seeing you there!